| Answer | Crossword Clue |
|---|---|
| ENIGMA | WWII code machine |
| ALAN | WWII code breaker Turing |
| TALKERS | Navajo code ... (WWII encoders-decoders) |
| NAVAJO | Basis for a WWII code |
| DDE | His WWII code name was Duckpin |
| ENIGMA | WWII cipher machine |
| ENIGMA | WWII coding machine |
| ENIGMA | WWII encryption machine |
| STEN | WWII machine gun |
| UBOAT | WWII Enigma machine user |
